{"id":2716,"date":"2024-06-25T02:53:31","date_gmt":"2024-06-25T02:53:31","guid":{"rendered":"https:\/\/nylon-granules.com\/?p=2716"},"modified":"2024-06-25T03:16:33","modified_gmt":"2024-06-25T03:16:33","slug":"the-science-behind-plastic-yellowing","status":"publish","type":"post","link":"https:\/\/nylon-granules.com\/lv\/the-science-behind-plastic-yellowing\/","title":{"rendered":"Plastmasas dzelt\u0113\u0161anas zin\u0101tne"},"content":{"rendered":"<div class=\"row\"  id=\"row-101712206\">\n\n\t<div id=\"col-482956422\" class=\"col medium-6 small-12 large-6\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_75 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Saturs<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"P\u0101rsl\u0113gt satura tabulu\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">P\u0101rsl\u0113gt<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/nylon-granules.com\/lv\/the-science-behind-plastic-yellowing\/#Introduction_of_Plastic_Yellowing\" >Plastmasas dzelt\u0113\u0161anas ievie\u0161ana\u00a0<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/nylon-granules.com\/lv\/the-science-behind-plastic-yellowing\/#Degradation_of_the_Polymer_Chain\" >Polim\u0113ra \u0137\u0113des no\u0101rd\u012b\u0161an\u0101s<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/nylon-granules.com\/lv\/the-science-behind-plastic-yellowing\/#Accumulation_of_Impurities_and_Additives\" >Piemais\u012bjumu un piedevu uzkr\u0101\u0161an\u0101s<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/nylon-granules.com\/lv\/the-science-behind-plastic-yellowing\/#Influence_of_Polymer_Type\" >Polim\u0113ra tipa ietekme<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/nylon-granules.com\/lv\/the-science-behind-plastic-yellowing\/#Role_of_Catalysts\" >Katalizatoru loma<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/nylon-granules.com\/lv\/the-science-behind-plastic-yellowing\/#Conclusion\" >Secin\u0101jums<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/nylon-granules.com\/lv\/the-science-behind-plastic-yellowing\/#Summary_FAQ_on_Plastic_Yellowing\" >Kopsavilkums BUJ par plastmasas dzelt\u0113\u0161anu<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Introduction_of_Plastic_Yellowing\"><\/span><strong>Plastmasas dzelt\u0113\u0161anas ievie\u0161ana\u00a0<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Plastmasas dzelt\u0113\u0161ana ir pla\u0161i izplat\u012bta probl\u0113ma, kas skar daudzus polim\u0113ru materi\u0101lus un bie\u017ei vien noved pie meh\u0101nisko \u012bpa\u0161\u012bbu pasliktin\u0101\u0161an\u0101s un \u012bs\u0101ka kalpo\u0161anas laika. \u0160aj\u0101 rakst\u0101 ir apl\u016bkots \u0161\u012bs par\u0101d\u012bbas zin\u0101tniskais skaidrojums, p\u0113tot galvenos faktorus, kas veicina plastmasas kr\u0101sas mai\u0146u.<\/p>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n\t<div id=\"col-2147243442\" class=\"col medium-6 small-12 large-6\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_1599827196\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" >\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"228\" height=\"221\" src=\"https:\/\/nylon-granules.com\/wp-content\/uploads\/2024\/06\/Plastic-Yellowing.jpg\" class=\"attachment-large size-large\" alt=\"Plastmasas dzelt\u0113\u0161ana\" srcset=\"https:\/\/nylon-granules.com\/wp-content\/uploads\/2024\/06\/Plastic-Yellowing.jpg 228w, https:\/\/nylon-granules.com\/wp-content\/uploads\/2024\/06\/Plastic-Yellowing-12x12.jpg 12w\" sizes=\"auto, (max-width: 228px) 100vw, 228px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_1599827196 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n<h2><span class=\"ez-toc-section\" id=\"Degradation_of_the_Polymer_Chain\"><\/span><strong>Polim\u0113ra \u0137\u0113des no\u0101rd\u012b\u0161an\u0101s<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Plastmasas dzelt\u0113\u0161ana galvenok\u0101rt ir saist\u012bta ar polim\u0113ru \u0137\u0113\u017eu no\u0101rd\u012b\u0161anos. \u0160\u012bs gar\u0101s monom\u0113ru \u0137\u0113des, kas savstarp\u0113ji saist\u012btas kovalent\u0101m sait\u0113m, ir jut\u012bgas pret t\u0101diem vides stresa faktoriem k\u0101 UV starojums, karstums un sk\u0101beklis. Sadaloties \u0161\u012bm sait\u0113m, veidojas dubult\u0101s saites un citas \u0137\u012bmiskas izmai\u0146as, k\u0101 rezult\u0101t\u0101 molekulas k\u013c\u016bst maz\u0101kas. \u0160is process, ko d\u0113v\u0113 par \u0137\u0113des sa\u0161\u0137el\u0161anos, ne tikai izmaina plastmasas \u0137\u012bmisko strukt\u016bru, bet ar\u012b pasliktina t\u0101s s\u0101kotn\u0113j\u0101s \u012bpa\u0161\u012bbas.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Accumulation_of_Impurities_and_Additives\"><\/span><strong>Piemais\u012bjumu un piedevu uzkr\u0101\u0161an\u0101s<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Lai uzlabotu plastmasas \u012bpa\u0161\u012bbas, t\u0101s ra\u017eo\u0161anas proces\u0101 bie\u017ei vien tiek pievienotas t\u0101das piedevas k\u0101 stabilizatori, kr\u0101svielas un pildvielas. Laika gait\u0101 \u0161\u012bs piedevas var migr\u0113t uz plastmasas virsmas, izraisot kr\u0101sas mai\u0146u. Turkl\u0101t t\u0101di piemais\u012bjumi k\u0101 mitrums un putek\u013ci var pastiprin\u0101t dzelt\u0113\u0161anas procesu, uzkr\u0101joties polim\u0113ra matric\u0101.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Influence_of_Polymer_Type\"><\/span><strong>Polim\u0113ra tipa ietekme<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Plastmasas jut\u012bba pret dzelt\u0113\u0161anu at\u0161\u0137iras atkar\u012bb\u0101 no izmantot\u0101 polim\u0113ra veida. Piem\u0113ram, polietil\u0113ns un polipropil\u0113ns ir vair\u0101k pak\u013cauti dzelt\u0113\u0161anai sal\u012bdzin\u0101jum\u0101 ar polistirolu un polivinilhlor\u012bdu, jo at\u0161\u0137iras to \u0137\u012bmisk\u0101 strukt\u016bra un funkcion\u0101l\u0101s grupas.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Role_of_Catalysts\"><\/span><strong>Katalizatoru loma<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Katalizatori, piem\u0113ram, met\u0101lu joni un peroks\u012bdi, var pa\u0101trin\u0101t plastmasas dzelt\u0113\u0161anu, veicinot \u0137\u0113des sa\u0161\u0137el\u0161anos un dubultsai\u0161u veido\u0161anos. \u0160ie katalizatori palielina no\u0101rd\u012b\u0161an\u0101s \u0101trumu, t\u0101d\u0113j\u0101di pa\u0101trinot kr\u0101sas mai\u0146as procesu.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span><strong>Secin\u0101jums<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Plastmasas dzelt\u0113\u0161ana ir daudz\u0161\u0137aut\u0146ains process, ko ietekm\u0113 vair\u0101ki faktori, tostarp polim\u0113ra \u0137\u0113des degrad\u0101cija, piedevu un piemais\u012bjumu migr\u0101cija, polim\u0113ra veids un katalizatoru kl\u0101tb\u016btne. Izpratne par \u0161o dinamiku ir \u013coti svar\u012bga, lai izstr\u0101d\u0101tu strat\u0113\u0123ijas plastmasas dzelt\u0113\u0161anas mazin\u0101\u0161anai un t\u0101s ilgm\u016b\u017e\u012bbas pagarin\u0101\u0161anai. Nov\u0113r\u0161ot \u0161os faktorus, izmantojot lab\u0101kus materi\u0101lus un vides p\u0101rvald\u012bbas praksi, m\u0113s varam uzlabot materi\u0101lu ilgm\u016b\u017e\u012bbu un est\u0113tisko izskatu. <a href=\"https:\/\/nylon-granules.com\/lv\/products\/\">plastmasas izstr\u0101d\u0101jumi<\/a>.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Summary_FAQ_on_Plastic_Yellowing\"><\/span><strong>Kopsavilkums BUJ par plastmasas dzelt\u0113\u0161anu<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><strong>1. Kas izraisa plastmasas dzelt\u0113\u0161anu laika gait\u0101?<\/strong>\u00a0<\/p>\n<p>Plastmasas dzelt\u0113\u0161anu galvenok\u0101rt izraisa polim\u0113ru \u0137\u0113\u017eu degrad\u0101cija, ko izraisa t\u0101di vides faktori k\u0101 UV starojums, karstums un sk\u0101beklis. \u0160\u012b no\u0101rd\u012b\u0161an\u0101s izraisa \u0137\u012bmiskas izmai\u0146as plastmas\u0101, tostarp dubultsai\u0161u veido\u0161anos un maz\u0101ku molekulu veido\u0161anos.<\/p>\n<p><strong>2.K\u0101 piedevas veicina plastmasas dzelt\u0113\u0161anu?<\/strong>\u00a0<\/p>\n<p>Piedevas, piem\u0113ram, stabilizatori, kr\u0101svielas un pildvielas, kas tiek pievienotas ra\u017eo\u0161anas proces\u0101, lai uzlabotu veiktsp\u0113ju, laika gait\u0101 var migr\u0113t uz plastmasas virsmas. \u0160\u012b migr\u0101cija var izrais\u012bt kr\u0101sas mai\u0146u, jo \u012bpa\u0161i, ja plastmasa ir pak\u013cauta vides stresa faktoru iedarb\u012bbai.<\/p>\n<p><strong>3. Kura veida polim\u0113ri ir jut\u012bg\u0101ki pret dzelt\u0113\u0161anu?<\/strong>\u00a0<\/p>\n<p>Polietil\u0113ns un polipropil\u0113ns parasti ir vair\u0101k pak\u013cauti dzelt\u0113\u0161anas procesam sal\u012bdzin\u0101jum\u0101 ar t\u0101diem polim\u0113riem k\u0101 polistirols un polivinilhlor\u012bds. \u0160\u012b at\u0161\u0137ir\u012bba skaidrojama ar to \u0137\u012bmisk\u0101s strukt\u016bras un funkcion\u0101lo grupu at\u0161\u0137ir\u012bb\u0101m.<\/p>\n<p><strong>4. K\u0101da noz\u012bme ir katalizatoriem plastmasas dzelt\u0113\u0161anas pa\u0101trin\u0101\u0161an\u0101?<\/strong>\u00a0<\/p>\n<p>Katalizatori, piem\u0113ram, met\u0101lu joni un peroks\u012bdi, var pa\u0101trin\u0101t plastmasas no\u0101rd\u012b\u0161an\u0101s procesu, veicinot \u0137\u0113des sa\u0161\u0137el\u0161anos un dubultsai\u0161u veido\u0161anos. Tas pa\u0101trina plastmasas kr\u0101sas mai\u0146u, samazinot t\u0101s kalpo\u0161anas laiku.<\/p>\n<p><strong>5. K\u0101 samazin\u0101t plastmasas dzelt\u0113\u0161anu?<\/strong>\u00a0<\/p>\n<p>Izpratne par faktoriem, kas veicina plastmasas dzelt\u0113\u0161anu, piem\u0113ram, vides iedarb\u012bbas kontrole, piem\u0113rotu piedevu izv\u0113le un maz\u0101k jut\u012bgu polim\u0113ru izv\u0113le, var pal\u012bdz\u0113t izstr\u0101d\u0101t strat\u0113\u0123ijas, lai samazin\u0101tu dzelt\u0113\u0161anu. Turkl\u0101t plastmasas izstr\u0101d\u0101jumu kalpo\u0161anas laiku var pagarin\u0101t ar\u012b pareiza uzglab\u0101\u0161anas un apkopes prakse.<\/p>\n<p>\u00a0<\/p>","protected":false},"excerpt":{"rendered":"<p>Polim\u0113ra \u0137\u0113des no\u0101rd\u012b\u0161an\u0101s Plastmasas dzelt\u0113\u0161ana galvenok\u0101rt ir saist\u012bta ar polim\u0113ru \u0137\u0113\u017eu no\u0101rd\u012b\u0161anos. \u0160\u012bs gar\u0101s monom\u0113ru \u0137\u0113des, kas savstarp\u0113ji savienotas kovalent\u0101s sait\u0113s, ir jut\u012bgas pret t\u0101diem vides stresa faktoriem k\u0101 UV starojums, karstums un sk\u0101beklis. \u0160\u012bm sait\u0113m sadaloties, veidojas dubult\u0101s saites un citas \u0137\u012bmiskas izmai\u0146as, k\u0101 rezult\u0101t\u0101 galu gal\u0101 molekulas k\u013c\u016bst maz\u0101kas. \u0160is process [...]","protected":false},"author":1,"featured_media":2718,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-2716","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/nylon-granules.com\/lv\/wp-json\/wp\/v2\/posts\/2716","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nylon-granules.com\/lv\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/nylon-granules.com\/lv\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/nylon-granules.com\/lv\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/nylon-granules.com\/lv\/wp-json\/wp\/v2\/comments?post=2716"}],"version-history":[{"count":2,"href":"https:\/\/nylon-granules.com\/lv\/wp-json\/wp\/v2\/posts\/2716\/revisions"}],"predecessor-version":[{"id":2719,"href":"https:\/\/nylon-granules.com\/lv\/wp-json\/wp\/v2\/posts\/2716\/revisions\/2719"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nylon-granules.com\/lv\/wp-json\/wp\/v2\/media\/2718"}],"wp:attachment":[{"href":"https:\/\/nylon-granules.com\/lv\/wp-json\/wp\/v2\/media?parent=2716"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nylon-granules.com\/lv\/wp-json\/wp\/v2\/categories?post=2716"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nylon-granules.com\/lv\/wp-json\/wp\/v2\/tags?post=2716"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}